The equipment is a John Deere 4650 tractor with the 466cid engine. The unit is almost 25 yrs old, approximately 7000 hours on the engine since last overhauled. The tractor was used daily all winter, it gets started every day in an unheated building with temperatures as low as -20F. Prior to running Schaeffer's this tractor primarily used Cenpeco 15w40 at 200 hour OCI's, no prior UOA data.
380 hours on the Supreme 9000 5w40, 1 quart added during the OCI. JD oil filter used for the entire OCI. Analysis by Schaeffer's, they recommended increasing the drain interval to 480 hours.
copper 2
iron 30
chrom 1
alum 6
lead 6
moly 329
phos 1237
zinc 1381
mag 806
calcium 1924
sodium 8
potassium 0
silicon 7
visc. 12.45
sulfur 6
oxidation 8
nitration 17
soot .1
Antifreeze,H2O, & Fuel all zero.
380 hours on the Supreme 9000 5w40, 1 quart added during the OCI. JD oil filter used for the entire OCI. Analysis by Schaeffer's, they recommended increasing the drain interval to 480 hours.
copper 2
iron 30
chrom 1
alum 6
lead 6
moly 329
phos 1237
zinc 1381
mag 806
calcium 1924
sodium 8
potassium 0
silicon 7
visc. 12.45
sulfur 6
oxidation 8
nitration 17
soot .1
Antifreeze,H2O, & Fuel all zero.